Heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motor

Severe temperature rise is not tolerated in the windings and permanent magnets (PMs) of the electric motors due to the resultant performance degradation, increased maintenance cost, and eventually the short-circuit faults. This article suggests a new approach to mitigating the temperature of compone...

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Main Authors: Tohid Sharifi, Alireza Eikani
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Results in Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590123024016670
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author Tohid Sharifi
Alireza Eikani
author_facet Tohid Sharifi
Alireza Eikani
author_sort Tohid Sharifi
collection DOAJ
description Severe temperature rise is not tolerated in the windings and permanent magnets (PMs) of the electric motors due to the resultant performance degradation, increased maintenance cost, and eventually the short-circuit faults. This article suggests a new approach to mitigating the temperature of components in a flux-switching PM (FSPM) motor using the concepts of heat transfer paths and heat flow diagrams. Accordingly, changing the location of the armature windings from the adjacency of the PMs to the middle tooth of the E-core stator blocks brings multiple thermal and electromagnetic merits to the proposed motor. In the heat generation stage, the numerical studies indicate that the total power losses of the motor decrease from 56.6 W to 39.6 W. Moreover, the maximum working temperature of the windings and PMs is cut by 36.4% and 40%, respectively, demonstrating the remarkable effect of the proposed strategy on temperature. From the electromagnetic point of view, the proposed motor outperforms the E-core FSPM motor due to the separation of the electrical and magnetic loading sources, resulting in the uniformity of the steel cores' flux density. Lastly, the thermal and electromagnetic experimental studies are provided to verify the outcomes of the analytical and numerical investigations.
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series Results in Engineering
spelling doaj-art-9b68e656b63b4c11a204920bafed99b32024-12-19T10:59:22ZengElsevierResults in Engineering2590-12302024-12-0124103415Heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motorTohid Sharifi0Alireza Eikani1Department of Electrical Engineering, Electrical Machines and Transformers Research Laboratory (EMTRL), Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran; Corresponding author.Advanced Motion Systems Research Lab, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, IranSevere temperature rise is not tolerated in the windings and permanent magnets (PMs) of the electric motors due to the resultant performance degradation, increased maintenance cost, and eventually the short-circuit faults. This article suggests a new approach to mitigating the temperature of components in a flux-switching PM (FSPM) motor using the concepts of heat transfer paths and heat flow diagrams. Accordingly, changing the location of the armature windings from the adjacency of the PMs to the middle tooth of the E-core stator blocks brings multiple thermal and electromagnetic merits to the proposed motor. In the heat generation stage, the numerical studies indicate that the total power losses of the motor decrease from 56.6 W to 39.6 W. Moreover, the maximum working temperature of the windings and PMs is cut by 36.4% and 40%, respectively, demonstrating the remarkable effect of the proposed strategy on temperature. From the electromagnetic point of view, the proposed motor outperforms the E-core FSPM motor due to the separation of the electrical and magnetic loading sources, resulting in the uniformity of the steel cores' flux density. Lastly, the thermal and electromagnetic experimental studies are provided to verify the outcomes of the analytical and numerical investigations.http://www.sciencedirect.com/science/article/pii/S2590123024016670Heat transferPermanent magnet motorsHeat flow diagramHeat generationElectromagnetic torqueThermal experiment
spellingShingle Tohid Sharifi
Alireza Eikani
Heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motor
Results in Engineering
Heat transfer
Permanent magnet motors
Heat flow diagram
Heat generation
Electromagnetic torque
Thermal experiment
title Heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motor
title_full Heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motor
title_fullStr Heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motor
title_full_unstemmed Heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motor
title_short Heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motor
title_sort heat transfer investigations on a thermally superior alternative for the flux switching permanent magnet electric motor
topic Heat transfer
Permanent magnet motors
Heat flow diagram
Heat generation
Electromagnetic torque
Thermal experiment
url http://www.sciencedirect.com/science/article/pii/S2590123024016670
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AT alirezaeikani heattransferinvestigationsonathermallysuperioralternativeforthefluxswitchingpermanentmagnetelectricmotor